Number 5: Romelu Lukaku
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The big Belgian has certainly hit the ground running at Manchester United since his £75 million transfer last summer. He scored 16 Premier League goals in his first season at Old Trafford.
While that is certainly a significant number, he can definitely be counted upon to improve that tally this season, considering he has the talent to match Harry Kane, Salah and other top scorers. As the club's primary goalscorer, Lukaku has a huge influence on the club's performance in the league. Poor form on his part will certainly cost the side, just as certainly as good form will boost their chances of lifting the trophy this season.
He had a pretty good World Cup campaign, finishing third with Belgium, also scoring 4 goals in the tournament. Manchester United fans will certainly be hoping that he carries that good form into the domestic campaign.